QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

23km E of Coso Junction, CA

· 1.6 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 61 kmTulare County 100 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.1 (ml)
Depth
1.6 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Inyo County, 61 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2732 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 37 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 36.0637, -117.6898. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Inyo County, CA 61 km (38 mi) SSW of here earthquakes near Inyo County
Tulare County, CA 100 km (62 mi) E of here earthquakes near Tulare County
Kern County, CA 123 km (77 mi) NE of here earthquakes near Kern County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

59 earthquakes have been recorded within 50 km since this one.

  1. 1.5 27km ENE of Coso Junction, CA
  2. 1.7 27km ENE of Coso Junction, CA
  3. 3.3 26km ENE of Coso Junction, CA
  4. 1.6 26km ENE of Coso Junction, CA
  5. 1.5 26km ENE of Coso Junction, CA
  6. 1.6 26km ENE of Coso Junction, CA
  7. 1.9 27km ENE of Coso Junction, CA
  8. 1.8 26km ENE of Coso Junction, CA
  9. 1.8 23km WNW of Inyokern, CA
  10. 1.5 15km NNE of Coso Junction, CA
  11. 2.1 27km ENE of Coso Junction, CA
  12. 2.0 23km WNW of Inyokern, CA
  13. 1.8 26km ENE of Coso Junction, CA
  14. 3.1 26km ENE of Coso Junction, CA
  15. 2.8 26km ENE of Coso Junction, CA

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.